Portable conveyer.



In. 744,163. PATLNTLD Nov. I7, 190s.

I. A. BRO-WN. PORTABLE GONVLYBR.

APPLICATION FILED JAN. 16,-1902. No MODEL. 2 SHEETS-SHEET 1.

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I No. 744,163. y PATENTED Nov..1v,19oa.

v J. A. BROWN.

' PORTABLE CONVE-YER.

APPLICATION FILED JAN. 16, 1902.

No MODEL. 2 SHEETS-SHEET 2.

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UNITED STATES :Fatented November 17, 1903.

PATENT OFFICE.'

PORTABLE CONVEYER.

SPECIFICATION forming part oi' Letters Patent No. 744,163, dated November 17, 190.3.-

" Application filed January 16,1902. Serial No.'90,030. (No model.)

To @ZZ whom, it may concern.-

Beit known that I, JOHN ANDREW BROWN,

' a citizen of the United States, and a resident v of Portland, in the county of Multnomah andl State of Oregon, have invented a certain new and useful Improvement in Portable Conveyers, of which the following is a specification, reference being had to the accompanying drawings as forming a part thereof.

My invention relates to portable conveyors comprising a portable frame and endless travcling belt and used for carrying sacks of wheat, iiour, and other'merchandise over a vessels side while loading the same; and my invention has for its object an improvement ofthe system of transmission of the power for running the belt and also certain other irnprovements, simplifications, and novel features, rendering my conveyerbetter equipped for its work and more convenient to handle, all of which will clearly appear from the description hereinafter-given.

In the drawings, Figure 1 shows a side elevation of the central portion andthe head end portion of my improved conveyer. Fig. 2 is a plan of the same parts; Fig. 3 is a side elevation of the bottom end of my conveyorframe, showing the belt-tightening devices. Fig. 4 is a vertical cross-section on the line w .fr of, Fig. l, but on a larger scale,l the hood g for the motor being omitted. Fig. 5 is a detail, partly in section, of the devices at the head end of my conveyer for transmitting the motion of the shaft 72, to the driven drume; and Fig. 6 is a partial cross-section of the head end of my conveyer, taken on a central line of Fig. 5.

The letters designate the parts referred to.

The frame a of my conveyor is constructed of sides made of angle-iron and braces, as common in such construction. In the upper part of the frame are journaled a series of rollers b, and in the central portion of the frame are also journaled rollers c. The rollers b have crowning-faces. At the lower and head ends of the frame are journaled drums d e, over which travels the carrying-belt f, the upper or carrying stretch of said belt being supported on the rollers b and the middle portion of the return length of beltbeingsupported on the rollers c. The drum d is an idler and is adjustable, so as to tighten the belt, as shown in Fig. 3, and the drum e at the upper end of the conveyer is driven by the shaft h and drives the b elt. On the frame are mounted sills or rails t i to hold the merchandise on the belt while being carried on the same. In the central portion of the frame is installed an electric motorj, covered by a hood g. The shaft 7c of the motor carries a bevel-gear l, meshing with a smaller bevel-gear m, carried by the lowe'r end of the shaft h.

of suitable boxes n on the frame ct. The up- Yper end of the shaft h bears against a longitudinally-adjustable disk o. On such upper end of said shaft h is a worm-gearp, meshing with a vertically-journaled gear q, the latter being fixedly secured on the axle of the drum e, so as to rotate said drum. The gear q is inclosed in a housing r. A cross-section showing the arrangement of these parts is shown in Fig. 6. Such figure also shows an end of the drum e. The construction of such drums comprise a pair of disks, one at each end to, and a cylinder y, having a crowning exterior face. The construction of the housing or case r, inclosing the worin-gearp and gear q, is such that the same may be kept lled with oil to insure that the meshing gears are continuously well lubricated. The belttightening devices (shown in Fig. 3) consist of guides u, slidably holding boxes t, in which are journaled the axle ends of the drum d, and set-screws s for moving the boxes t to suitably stretch the belt.

' The operation of my improved motor is apparent. v'Ihe power of the motor j is transmitted through the gears Z m and shaft h, worm-gear p, and gear q to the drum e at the upper end, rotating the latter, and thus imparting motion to the belt. The power-transmitting devices of my improved conveyer being a part thereof, the same is very easily handled and the work greatly facilitated. My improved conveyor' is besides of simple construction and is not so bulky as conveyers of this class usually are. The conveyer is mounted on Wheels z about thirty (30) inches in diameter, so as to be easily portable.

Having fully described my invention, now what l claim, and desire to secure by Letters Patent, is

A conveyer comprising a wheeled frame- The shaft h is journaled in a series IOO Uli

motor being supported centrally of the framework and immediately above the journals of the framework-supporting Wheels.

In testimony whereof I have hereunto afxed my signature, in the presence of two witnesses, this 20th day of December, 1901.

JOHN ANDREW BROWN.

Witnesses:

T. J GEISLER, E. M. I-IoWATsoN. 

